Oaxaca weather in August

In August, Oaxaca sees average daytime highs of 25°C and overnight lows near 14°C, with 125 mm of rain across 15.1 wet days and about 12.6 hours of daylight. It is the 6th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 9% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 12 h 48 min at the start of August to 12 h 24 min by month's end. Set against the rest of the year, August is Oaxaca's 10th-clearest and 10th-windiest month. For the whole year in context, see Oaxaca's year-round climate.

Daytime high
25°
6th warmest
Overnight low
14°
10th coldest
Rainfall
125 mm
15.1 wet days
Daylight
12 h 36 min
6:14 AM – 6:48 PM
Cloud cover
75%
10th clearest
Wind
6 km/h
10th windiest
Solar energy
5.59 kWh/m²
Travel score
5.8
out of 10

Oaxaca is capital of the Mexican state of Oaxaca.

Density
2,984/km²
people per km²
Founded
1486

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical August day in Oaxaca reaches about 25°C in the afternoon and slips back to 14°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 27°C. Set against its neighbours, August runs on par with July and on par with September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12514
22514
32514
42514
52514
62514
72514
82514
92514
102514
112514
122514
132514
142514
152514
162514
172514
182514
192514
202514
212514
222514
232514
242514
252514
262514
272514
282414
292414
302414
312414

Oaxaca weather by month

How August compares with the rest of the year at a glance. August is the 6th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 30.611.19.0
Feb26° / 10°51.111.48.8
Mar27° / 11°162.911.98.0
Apr28° / 13°29512.46.8
May27° / 14°739.312.86.5
Jun25° / 14°16317135.5
Jul25° / 14°10413.912.96.0
Aug25° / 14°12515.112.65.8
Sep24° / 14°16017.212.15.5
Oct24° / 13°718.711.67.0
Nov24° / 11°10211.28.5
Dec24° / 10°40.8119.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 15% of August, with mostly cloudy or overcast conditions the remaining 76%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23169
33169
43169
53169
62971
72971
82971
92872
102773
112674
122674
132674
142476
152377
162377
172377
182377
192278
202278
212278
222179
232080
242080
252080
262080
272080
281882
291783
301783
311783

Chance of precipitation in August

Any precipitation

Oaxaca gets around 125 mm of rain over 15.1 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 49% and peaks near 58% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
140
241
341
442
543
644
744
845
946
1046
1147
1247
1347
1448
1548
1649
1749
1849
1950
2050
2150
2251
2351
2452
2553
2654
2755
2856
2957
3057
3158

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the comfortable band about 55% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
153452
253452
353452
452462
552462
650473
749483
848493
948503
1047503
1146513
1245523
1344533
1443543
1543543
1642553
1741563
1840573
1940573
2039574
2138584
2237594
2336604
2435614
2534615
2633625
2732635
2831645
2930655
3029665
3128666

Wind in August

Winds average 6 km/h in August.

Across August, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 48 min at the start of August to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over August. Sunrise moves from 6:10 AM to 6:16 AM, and sunset from 6:56 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:106:56
212.86:106:56
312.76:106:55
412.76:116:55
512.76:116:54
612.76:116:54
712.76:116:53
812.76:126:53
912.76:126:52
1012.76:126:52
1112.66:126:51
1212.66:136:51
1312.66:136:50
1412.66:136:50
1512.66:136:49
1612.66:146:48
1712.66:146:48
1812.66:146:47
1912.56:146:46
2012.56:146:46
2112.56:156:45
2212.56:156:44
2312.56:156:44
2412.56:156:43
2512.46:156:42
2612.46:166:41
2712.46:166:41
2812.46:166:40
2912.46:166:39
3012.46:166:38
3112.46:166:38

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.59 kWh/m².

For context, solar energy here swings from a low near 4.88 kWh/m² to a high of 7.09 kWh/m² in April across the year — August's 5.59 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.4Bright
245.4Bright
255.4Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.2Bright
315.2Bright
Planning a trip in August

Hazard calendar for Oaxaca

In seasonPeak

In August, Oaxaca sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Oaxaca's rainy season runs June–September, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Oaxaca?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.8
Sightseeing
10th-best month of the year
5.2
Beach & pool
10th-best month of the year

August is a reasonable time to visit Oaxaca for sightseeing.

What to pack for Oaxaca in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Oaxaca sees daytime highs around 25°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 15 days see rain.

rain gearlight clothessun protection

UV index in Oaxaca in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Oaxaca peaks around April 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 12UV 15Dec 15UV 9
UV index (midday)Level
Jan10Very high
Feb13Extreme
Mar14Extreme
Apr15Extreme
May12Extreme
Jun14Extreme
Jul13Extreme
Aug14Extreme
Sep13Extreme
Oct12Extreme
Nov9Very high
Dec9Very high

Air quality in Oaxaca in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Oaxaca is worst in May — around 31 µg/m³ PM2.5 (moderate), about 3.7× the cleanest month (January, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 1530 µg/m³Jan 118 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb11Good
Mar13Moderate
Apr21Moderate
May31Moderate
Jun17Moderate
Jul18Moderate
Aug14Moderate
Sep13Moderate
Oct10Good
Nov9Good
Dec9Good
Location & terrain

Where is Oaxaca?

Oaxaca sits at 17.1°N, 96.7°W, 1,571 m above sea level, in Mexico. The nearest listed city is Santa Cruz Xoxocotlán, 4.0 km away.

Topography around Oaxaca

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Oaxaca.

Within 3 km, the terrain around Oaxaca has significant variations in elevation — a maximum elevation change of 282 m around an average of 1,568 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,802 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,193 m.

The land around Oaxaca is covered by artificial surfaces (79%) within 3 km, trees (35%), grassland (21%) and cropland (20%) within 16 km, and trees (66%) within 80 km.

3 km
282 m
16 km
1,802 m
80 km
3,193 m
treesshrubsgrasslandcroplandartificial surfaces
August weather nearby: Santa Cruz Xoxocotlán 4.0 km · San Antonio de la Cal 4.0 km · Santa María Atzompa 7.0 km · Ocotlán de Morelos 30 km · Miahuatlán de Porfirio Díaz 82 km · Heroica Ciudad de Tlaxiaco 104 km · Tuxtepec 131 km · Puerto Escondido 138 km

Mexico travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 / 127 V · 60 Hz
Prices
≈ 54% of US
price level, 2025
GDP per capita
$13,889
2025
Happiness
7.0 / 10
World Happiness, 2025
Safe drinking water
43%
of population, 2024
Homicide rate
24.9
per 100k, 2023
Road deaths
12.8
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 440
Religion
Catholic 78%no religion 11%other Evangelical Churches 8%Jehovah Witness 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Oaxaca (17.0602°, -96.7254°, elevation 1,571 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).